William Del Principe Profile picture
Jul 6 7 tweets 3 min read Read on X
🔥 This is wild

Claude 4 now beats junior lawyers at:

→ Startup contracts
→ Risk reviews
→ Founder splits

All with a single prompt.

Here’s how to plug it into your workflow: Image
Claude handles every startup staple like a pro:

• Mutual & one-way NDAs
• Master Service Agreements (MSAs)
• Independent contractor agreements
• SaaS Terms of Service
• Investor SAFE notes

And it explains each clause in plain English so you can tweak as needed.
Steal this prompt 👇

Copy-paste into Claude 4:

"
You are a senior tech-savvy attorney who drafts clear, enforceable contracts for high-growth startups.



[Pick one: NDA, MSA, Employment Agreement, SAFE, SaaS Terms]



Party A: [Name, address, role]
Party B: [Name, address, role]



• Jurisdiction: [State / Country]
• Term & termination rules
• Payment or consideration details
• IP ownership & confidentiality scope
• Liability limitations & indemnities
• Signature requirements



1. Draft a complete contract with numbered sections.
2. Add plain-English summaries after each clause in italics.
3. Flag any blank fields with ‹BRACKETS› for user input.
4. Ensure the language aligns with the chosen jurisdiction.
5. Output only the final contract. No extra commentary.

"
We tested on 4 real deals last week. Claude delivered:

✅ Bulletproof NDA in Delaware jurisdiction
✅ SaaS Terms with GDPR & CCPA baked in
✅ Investor SAFE note with pro-rata clause
✅ 15-page MSA, zero legalese bloat

Total time: 3–4 minutes per doc.
How to use it:

1. Copy prompt → Claude 4.
2. Fill contract type, parties, key terms.
3. Review bracketed blanks, hit enter.

Get lawyer-grade contract, tweak, sign.

Yes, still run it by counsel if millions are on the line. But for day-to-day ops this is game-changing.
You don’t need another SaaS tool. You need an AI teammate.

Thoughtly deploys a voice agent that handles:

• Customer service
• Lead qualification
• Calendar booking

No code. No downtime. Just revenue-generating automation.

Start free at thoughtly.com
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More from @WillDelPrincipe

Jun 28
This guy is genius…

Someone gave Claude 4 Sonnet one mega prompt and now it runs his entire marketing engine:

→ Research
→ SEO
→ Ad copy
→ Content
→ Strategy

Here’s the exact prompt (steal it):
The mega prompt:

Steal it:

"
Act as a full-stack AI marketing strategist for a startup preparing to launch a new product or service. You will handle market research, positioning, messaging, content creation, email copywriting, and SEO ideation.



{Describe your product or service here}
{Who is the product for? (demographics, psychographics, industry, etc.)}
{e.g. “generate leads,” “build awareness,” “launch product,” etc.}
{e.g. “casual and fun,” “bold and punchy,” “professional and clear”}



Given the product, target audience, and goal:

1. **Customer Insight & Research**
- Generate an Ideal Customer Profile (ICP)
- Identify key pain points, goals, and decision drivers
- Suggest 3 positioning angles to resonate with this audience

2. **Messaging & Conversion Copy**
- Write a hook-driven landing page (headline, subheadline, CTA section)
- Provide 3 viral headline variations
- Create a messaging matrix: [Pain Point → Promise → Proof → CTA]

3. **Content Creation**
- Generate a 7-day content plan (Twitter + LinkedIn)
- Include daily post titles, themes, and tone suggestions
- Add 1 short-form video concept if relevant

4. **Email Marketing**
- Write 3 cold email variations:
- Value-first pitch
- Problem-agitate-solution
- Case-study / social proof style

5. **SEO Strategy**
- Suggest 1 SEO topic cluster aligned with the product
- Provide 5 blog post titles that target mid-to-high intent keywords
- Recommend a pillar + supporting post structure

6. **Output Format**
- Use clear section headers (e.g. “ICP”, “Landing Page Copy”, “SEO Titles”)
- Use markdown formatting for readability
- Do **not** explain your reasoning — just give the final, polished outputs

This should be delivered as a comprehensive marketing kit, ready to deploy.

"
My input:

<product>AI-powered scheduling tool for solopreneurs</product>
<target_audience>Freelancers and solo founders aged 25–40 who struggle with time management</target_audience>
<goal>Generate leads for upcoming launch</goal>
<tone>Bold and punchy</tone>
Read 8 tweets
Jun 27
Gemini 2.5 Pro is insanely good at writing.

I built one mega prompt that turns it into a full-stack content assistant.

Now I don’t outsource anything.

Here’s the full prompt (landing pages, emails, posts done) 🧵
If you’re a writer and not using AI for your work…I’m 100% sure you’ll lose your job to a writer who does.

This isn’t a maybe it’s already happening. Image
And let’s be honest:

Most content today is:

- Bloated
- Robotic
- Written for algorithms, not humans

That’s why I built this.
Read 10 tweets

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